This LED string is excellent for use as a lighting addition to any decorative project. It is suitable for Christmas, parties, weddings and other holidays. The string has 150 LEDs, creating a warm white lighting performance. It also features 8 different lighting effects: combination mode, waves, sequential mode, slowly glowing mode, flashing, slowly fading mode, twinkling and continuous lighting. The string light can be easily bent into any shape you want. It is a great decorative accessory to illuminate indoor and outdoor spaces, like gardens, fences, gates, Christmas trees, etc.The product has a USB connector, but the certified 5V USB power source is not included